Biology

Why do two animals confronted with the same information sometimes make entirely different decisions? A new study of wild cichlid...

LA JOLLA, Calif., August 13, 2026—For decades, biologists have been able to catalog many of the chemical reactions that sustain...

For years, epigenetic clocks have promised to reveal whether a person is aging faster or slower than the calendar suggests....

A wound that heals imperfectly leaves a scar. In the genome, the equivalent scar is a mutation: a permanent alteration...

An international team of researchers has reconstructed how the body sizes of Europe’s ancient carnivorous mammals changed during the Paleogene,...

For decades, scientists have known that two unusual classes of antibiotics can shut down RNA polymerase, the molecular machine responsible...

The membrane surrounding the human brain is easy to overlook until it is damaged. Known as the dura mater, this...

A small number of unusually adventurous ospreys may hold the key to restoring the species across Europe, according to a...

A multi-pronged treatment strategy combining broadly neutralizing antibodies, antiretroviral therapy and a drug that blocks the HIV coreceptor CCR5 has...

Fungi may be among the oldest living organisms on Earth, yet scientists still cannot answer one of the simplest questions...

For more than three decades, researchers at the University of California, Riverside, have been testing a deceptively simple question: can...

Bacteriophages, the viruses that infect bacteria, are often portrayed as highly specialized molecular machines: particles that recognize a host, inject...

Most health checks offer a still photograph of the body: a blood-pressure reading, a cholesterol level, a glucose measurement and...

Giant viruses are rewriting one of biology’s most familiar stories. Once regarded as unusual but relatively isolated curiosities, these oversized...

Antibody medicines are often discovered by searching through an overwhelming biological library. Researchers may begin with millions or even billions...

A newly identified gene found only in simians may help explain why humans and other higher primates maintain more stable...

Large language models such as ChatGPT have become an increasingly popular source of health information, offering patients immediate explanations of...

Granulosa cells, the ovarian support cells that nurture developing oocytes, may retain a molecular memory of reproductive ageing even after...

A tiny Australian freshwater fish may be carrying a warning for the future of wildlife conservation. New research shows that...

Computed tomography has transformed modern medicine by allowing clinicians to see inside the body without surgery, but the technology has...